plugin XEP-0447: handle attachment and download: - plugin XEP-0447 can now be used in message attachments and to retrieve an attachment - plugin attach: `attachment` being processed is added to `extra` so the handler can inspect it - plugin attach: `size` is added to attachment - plugin download: a whole attachment dict is now used in `download` and `file_download`/`file_download_complete`. `download_uri` can be used as a shortcut when just a URI is used. In addition to URI scheme handler, whole attachment handlers can now be registered with `register_download_handler` - plugin XEP-0363: `file_http_upload` `XEP-0363_upload_size` triggers have been renamed to `XEP-0363_upload_pre_slot` and is now using a dict with arguments, allowing for the size but also the filename to be modified, which is necessary for encryption (filename may be hidden from URL this way). - plugin XEP-0446: fix wrong element name - plugin XEP-0447: source handler can now be registered (`url-data` is registered by default) - plugin XEP-0447: source parsing has been put in a separated `parse_sources_elt` method, as it may be useful to do it independently (notably with XEP-0448) - plugin XEP-0447: parse received message and complete attachments when suitable - plugin XEP-0447: can now be used with message attachments - plugin XEP-0447: can now be used with attachments download - renamed `options` arguments to `extra` for consistency - some style change (progressive move from legacy camelCase to PEP8 snake_case) - some typing rel 379

#!/bin/bash

# we first need to wait for PostgreSQL
# cf. https://stackoverflow.com/a/39028690 (thanks!)

RETRIES=5

until psql -c "select 1" > /dev/null 2>&1 || [ $RETRIES -eq 0 ]; do
  echo "Waiting for postgres server, $((RETRIES--)) remaining attempts…"
  sleep 1
done

ori_dir=${PWD}
cd /src/sat_pubsub/db

# PG should be OK, we now initialize the database. If it's already done, it will fail
# with exit code 3
psql -v ON_ERROR_STOP=1 pubsub < pubsub.sql 2>/dev/null
case $? in
    0) printf "database initialized\n" ;;
    3) printf "database already exists\n" ;;
    *) printf "can't initialize database, please check PostgreSQL container parameters\n" >&2
       exit 1
       ;;
esac

cd $ori_dir

exec /home/libervia/libervia_env/bin/twistd -n libervia-pubsub "$@"